Diff: main.cpp

Revision:

1:060801821b1c

Parent:

0:c435f76658b2

--- a/main.cpp	Thu Nov 02 18:31:39 2017 +0000
+++ b/main.cpp	Thu Nov 02 21:22:34 2017 +0000
@@ -1,13 +1,36 @@
+/*
+  Project: PatientStructure (based on very similar example by Dr. Ross.)
+  File: main.cpp (file v. 1.0)
+  Modified by by: Dr. C. S. Tritt
+  Last revision on: 11/2/17 (Project v. 1.0)
+
+  Simulates a patient database. See comments in patients.cpp regarding purpose 
+  use of each function. This function just populates the database and initates 
+  update of one record.
+  
+  This program is for demonstration only. Input is not validated and array 
+  limits are not checked. This is bad programming practice, but okay for "toy"
+  programs like this.
+*/
+
 #include "mbed.h"
 #include "patients.h"
 
+// Some functions use the serial monitor so define it here. Declare as extern
+// in header file.
+Serial pc(USBTX,USBRX);
+
 //Pretend we have a pulse oximeter attached to A0 which provides the SpO2
 //as a fraction.
 AnalogIn pulse_oximeter(A0);
 
 int main()
 {
-    // Create an array of patient_record structures to form the patient database.
+    pc.printf("\nWelcome to PatientStructure Example.\n");
+    pc.printf("Turn local echo on!\n");
+    // Create an array of patient_record structures to form the patient 
+    // database.
+    pc.printf("About to create and populate database...\n");
     struct patient_record all_patients[MAX_PATIENTS];
     // Keep track of the number of patients.
     int enrollment=0;
@@ -20,20 +43,24 @@
     enrollment++;
     
     newPatient(&(all_patients[enrollment]),"Thomas","Jefferson");
-    enrollment++;
+    enrollment++; // Enrollment incr. an extra time. Its the # of pateints.
 
-    //Look up a patient--this one is not in our database.    
-    int X=lookup_patient_name(all_patients,"Abraham","Lincoln");
-    pc.printf("Abraham Lincoln is patient %d\n",X);
+    //Look up a patient -- this one is not in our database.  
+    pc.printf("About to lookup non-existent patient...\n");  
+    int X = lookup_patient_name(all_patients, "Abraham", "Lincoln");
+    pc.printf("Abraham Lincoln is patient %d\n", X);
     
     //Look up a patient.    
-    int Y=lookup_patient_name(all_patients,"Thomas","Jefferson");
-    pc.printf("Thomas Jefferson is patient %d\n",Y);
+    pc.printf("About to lookup valid patient...\n");  
+    int Y = lookup_patient_name(all_patients, "Thomas", "Jefferson");
+    pc.printf("Thomas Jefferson is patient %d\n", Y);
    
     //Enter patient's vitals.
+    pc.printf("About to interactively update patient data...\n");
+    pc.printf("There are %d patients in the database. Be careful!\n", 
+        enrollment);  
     recordBPinteractive(all_patients, pulse_oximeter);
-
-    while(1);   
-
-
+    
+    pc.printf("Done. I sleep now...\n");  
+    while(true) wait(3600); // Loop here forever, waiting an hour at a time.
 }
\ No newline at end of file